like you and me, and they got a helping hand from youth service america, y.s.a. >> y.s.a. is a global nonprofit that reaches out to young people around the world, now in over 106 countries, and asks them to change the world. >> i help the senior citizens locally through a charity. >> i'm an adviser for prep for prep on saturdays, which is this program that helps low-income kids get into independent schools. >> i'm going to nicaragua to build for a community. >> i definitely want to start a charity for people and children in the world who don't have everything that we have, but i don't really know how to. >> we often report on service projects kids are doing. that's how we found out about y.s.a. it helps great ideas find support and funding. according to y.s.a., there are four ways kids can change the world. >> the first is through awareness, where they raise awareness about big issues. second thing is service, where they intervene. they provide their time and their talents to a big problem. third is through advocacy, where they might do letters to the editors, have their voices heard.